A tiny neutrino detector scored big at a nuclear reactor

A tiny neutrino detector has found its footing in a fresh setting — at a nuclear reactor.  Conventional detectors of the subatomic particles require metric tons of material. But the new detector has a mass of less than 3 kilograms. Think chihuahua. And it successfully detected antineutrinos, the antimatter counterparts of neutrinos, streaming from a nuclear…

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